4 * Userspace RCU library - test atomic operations
6 * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include <urcu/uatomic.h>
28 #ifdef UATOMIC_HAS_ATOMIC_BYTE
31 #ifdef UATOMIC_HAS_ATOMIC_SHORT
38 static struct testvals vals
;
40 #define do_test(ptr) \
42 __typeof__(*(ptr)) v; \
44 uatomic_add(ptr, 10); \
45 assert(uatomic_read(ptr) == 10); \
46 uatomic_add(ptr, -11UL); \
47 assert(uatomic_read(ptr) == (__typeof__(*(ptr)))-1UL); \
48 v = uatomic_cmpxchg(ptr, -1UL, 22); \
49 assert(uatomic_read(ptr) == 22); \
50 assert(v == (__typeof__(*(ptr)))-1UL); \
51 v = uatomic_cmpxchg(ptr, 33, 44); \
52 assert(uatomic_read(ptr) == 22); \
54 v = uatomic_xchg(ptr, 55); \
55 assert(uatomic_read(ptr) == 55); \
57 uatomic_set(ptr, 22); \
59 assert(uatomic_read(ptr) == 23); \
61 assert(uatomic_read(ptr) == 22); \
62 v = uatomic_add_return(ptr, 74); \
64 assert(uatomic_read(ptr) == 96); \
65 uatomic_or(ptr, 58); \
66 assert(uatomic_read(ptr) == 122); \
67 v = uatomic_sub_return(ptr, 1); \
69 uatomic_sub(ptr, (unsigned int) 2); \
70 assert(uatomic_read(ptr) == 119); \
73 assert(uatomic_read(ptr) == 121); \
74 uatomic_and(ptr, 129); \
75 assert(uatomic_read(ptr) == 1); \
78 int main(int argc
, char **argv
)
80 #ifdef UATOMIC_HAS_ATOMIC_BYTE
83 #ifdef UATOMIC_HAS_ATOMIC_SHORT
88 printf("Atomic ops test OK\n");
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